Lateralized differences in power spectra across different frequency bands during NREM sleep in patients with primary insomnia.

ABSTRACT:

Objective

To compare the electroencephalogram power spectrum of patients with primary insomnia and good sleep controls in multiple brain areas and different frequency bands during non-rapid eye movement sleep.

Methods

48 primary insomnias and 30 age-and gender-matched good sleep controls were recorded overnight with polysomnography. Power spectral analysis was performed in six brain areas (F3, F4, C3, C4, O1 and O2) and across seven frequency bands (delta, sigma, alpha, theta, beta1, beta2, and gamma) during non-rapid eye movement sleep between primary insomnias and good sleep controls.

Results

In primary insomnias, there were significant differences in frequency bands and areas. Compared to good sleep controls, delta power was lower in primary insomnias, while beta1,

SUBMITTER: Huang J 

PROVIDER: S-EPMC11790578 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature